You get a door jimmy and ope the door for the cabin of the car then you use the tab on the back seat to pull the seat open to get into the trunk compartment....or you could break a window to get in the cabin. you cant call onstar though because they cant open the locks when the battery is dead.
Remove the rear seat.
use key to manually unlock. manual unlock will not work.
To open the trunk of a BMW X5 with a dead battery, you can use the manual key hidden inside the key fob. First, remove the emergency key by sliding the release button on the fob. Then, use the key to unlock the driver's door and access the cabin. Once inside, locate the trunk release lever or button, or manually open the trunk using the emergency latch if available.
By using your key to unlock the door.
how do you unlock the trunk of a 740il BMW with keys locked inside
To open the trunk of a 2002 BMW 540i with a dead battery, you can use the manual key blade that is integrated into the key fob. Insert the key into the driver's door lock to unlock the car, then access the trunk release lever inside the vehicle. If the lever doesn't work due to the dead battery, you may need to fold down the rear seats to reach the trunk or access the trunk release directly from the inside. Alternatively, jump-starting the battery can also restore power to operate the trunk.
Stick the key in the door lock and turn.
trunk
In the trunk.
In the trunk
Use your key manuel like the old days. Kurt
The battery in in the trunk (boot).